Data loss prevention during outages (you might be losing data without knowing it)

Data loss prevention is a critical concern for businesses, as even sophisticated systems with backups and failover procedures may suffer from unnoticed data loss during outages. Traditional replication methods, such as synchronous, asynchronous, and semi-synchronous replication, each present different challenges related to latency and potential data loss. Synchronous replication, while ensuring data consistency, can introduce high latency, whereas asynchronous replication, though faster, risks data loss if the primary node goes offline before data is replicated. Semi-synchronous replication attempts to balance these issues but can still lead to data loss under stress. Consensus-based replication, as used by CockroachDB, offers a solution by combining low latency with zero data loss through a leader and follower node system, making it increasingly attractive for companies prioritizing resilience and data durability. Ensuring zero data loss is particularly important for tier 0 workloads, as data loss can significantly impact financial performance, customer loyalty, and company reputation.